SM400B - Q/BQB 130-2003

Grade	SM400B
Corresponding Standard	Q/BQB 130-2003
Classification	Carbon Steel

SM400B Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Al
适用成品板厚>6~12mm	Minimum Value	0.1	-	0.6	-	-	0.01
适用成品板厚>6~12mm	Maximum Value	0.19	0.06	1.1	0.035	0.035	-

①Deoxidation method : C--Cap steel；A--aluminum-killed steel；G-aluminum--silicon killed steel；K--silicon killed steel
②For thick plates (thickness ≥ 15mm), the slabs should be aluminum-silicon killed steel slabs.

SM400B Corresponding Standards(Same grade name, different standards)

1	JIS G 3106-2008
	SM400B
2	Q/ASB 271-2017
	SM400B
3	Q/ASB 320-2017
	SM400B
4	Q/BQB 303-2018
	SM400B
5	Q/BQB 130-2003
	SM400B

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